/*
* @(#)AudioFormatChooser.java 1.18 02/08/21
*
* Copyright (c) 1996-2002 Sun Microsystems, Inc. All rights reserved.
*/
package com.sun.media.ui;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.media.*;
import javax.media.format.*;
import com.sun.media.util.JMFI18N;
public class AudioFormatChooser extends Panel implements ItemListener {
public static final String ACTION_TRACK_ENABLED = "ACTION_AUDIO_TRACK_ENABLED";
public static final String ACTION_TRACK_DISABLED = "ACTION_AUDIO_TRACK_DISABLED";
private AudioFormat formatOld;
private Format arrSupportedFormats [] = null;
private Vector vectorContSuppFormats = new Vector ();
private boolean boolDisplayEnableTrack;
private ActionListener listenerEnableTrack;
private boolean boolEnableTrackSaved = true;
private Checkbox checkEnableTrack;
private Label labelEncoding;
private Choice comboEncoding;
private Label labelSampleRate;
private Choice comboSampleRate;
private Label labelHz;
private Label labelBitsPerSample;
private CheckboxGroup groupBitsPerSample;
private Checkbox checkBits8;
private Checkbox checkBits16;
private Label labelChannels;
private CheckboxGroup groupChannels;
private Checkbox checkMono;
private Checkbox checkStereo;
private Label labelEndian;
private CheckboxGroup groupEndian;
private Checkbox checkEndianBig;
private Checkbox checkEndianLittle;
private Checkbox checkSigned;
private boolean boolEnable8 = false;
private boolean boolEnable16 = false;
private boolean boolEnableMono = false;
private boolean boolEnableStereo = false;
private boolean boolEnableEndianBig = false;
private boolean boolEnableEndianLittle = false;
private boolean boolEnableSigned = false;
public AudioFormatChooser ( Format arrFormats[], AudioFormat formatDefault ) {
this ( arrFormats, formatDefault, false, null );
}
public AudioFormatChooser ( Format arrFormats[], AudioFormat formatDefault,
boolean boolDisplayEnableTrack,
ActionListener listenerEnableTrack ) {
int i;
int nCount;
this.arrSupportedFormats = arrFormats;
this.boolDisplayEnableTrack = boolDisplayEnableTrack;
this.listenerEnableTrack = listenerEnableTrack;
nCount = arrSupportedFormats.length;
for ( i = 0; i < nCount; i++ ) {
if ( arrSupportedFormats[i] instanceof AudioFormat )
vectorContSuppFormats.addElement ( arrSupportedFormats[i] );
}
if ( isFormatSupported(formatDefault) )
this.formatOld = formatDefault;
else
this.formatOld = null;
try {
init();
}
catch (Exception e) {
e.printStackTrace();
}
}
public void setEnabled ( boolean boolEnable ) {
super.setEnabled ( boolEnable );
if ( checkEnableTrack != null )
checkEnableTrack.setEnabled ( boolEnable );
enableControls ( boolEnable );
}
public Format getFormat () {
int i;
int nSize;
String strEncoding;
double dSampleRate;
String strSampleRate;
int nBits;
int nChannels;
int nEndian;
int nSigned;
Format formatResult = null;
AudioFormat formatAudioNew;
AudioFormat formatAudio;
Object objectFormat;
strEncoding = comboEncoding.getSelectedItem ();
strSampleRate = comboSampleRate.getSelectedItem ();
dSampleRate = Double.valueOf(strSampleRate).doubleValue();
if ( checkBits8.getState() == true && checkBits8.isEnabled() == true )
nBits = 8;
else if ( checkBits16.getState() == true && checkBits16.isEnabled() == true )
nBits = 16;
else
nBits = Format.NOT_SPECIFIED;
if ( checkMono.getState() == true && checkMono.isEnabled() == true )
nChannels = 1;
else if ( checkStereo.getState() == true && checkStereo.isEnabled() == true )
nChannels = 2;
else
nChannels = Format.NOT_SPECIFIED;
if ( checkEndianBig.getState() == true && checkEndianBig.isEnabled() == true )
nEndian = AudioFormat.BIG_ENDIAN;
else if ( checkEndianLittle.getState() == true && checkEndianLittle.isEnabled() == true )
nEndian = AudioFormat.LITTLE_ENDIAN;
else
nEndian = Format.NOT_SPECIFIED;
if ( checkSigned.getState() == true )
nSigned = AudioFormat.SIGNED;
else
nSigned = AudioFormat.UNSIGNED;
formatAudioNew = new AudioFormat ( strEncoding, dSampleRate, nBits, nChannels, nEndian, nSigned );
nSize = vectorContSuppFormats.size ();
for ( i = 0; i < nSize && formatResult == null; i++ ) {
objectFormat = vectorContSuppFormats.elementAt ( i );
if ( !(objectFormat instanceof AudioFormat) )
continue;
formatAudio = (AudioFormat) objectFormat;
if ( !this.isFormatGoodForEncoding(formatAudio) )
continue;
if ( !this.isFormatGoodForSampleRate(formatAudio) )
continue;
if ( !this.isFormatGoodForBitSize(formatAudio) )
continue;
if ( !this.isFormatGoodForChannels(formatAudio) )
continue;
if ( !this.isFormatGoodForEndian(formatAudio) )
continue;
if ( !this.isFormatGoodForSigned(formatAudio) )
continue;
if ( formatAudio.matches(formatAudioNew) )
formatResult = formatAudio.intersects ( formatAudioNew );
}
return ( formatResult );
}
public void setCurrentFormat ( AudioFormat formatDefault ) {
if ( isFormatSupported(formatDefault) )
this.formatOld = formatDefault;
updateFields ( formatOld );
}
public void setSupportedFormats ( Format arrFormats[], AudioFormat formatDefault ) {
int i;
int nCount;
this.arrSupportedFormats = arrFormats;
nCount = arrSupportedFormats.length;
vectorContSuppFormats.removeAllElements ();
for ( i = 0; i < nCount; i++ ) {
if ( arrSupportedFormats[i] instanceof AudioFormat )
vectorContSuppFormats.addElement ( arrSupportedFormats[i] );
}
if ( isFormatSupported(formatDefault) )
this.formatOld = formatDefault;
else
this.formatOld = null;
setSupportedFormats ( vectorContSuppFormats );
}
public void setSupportedFormats ( Vector vectorContSuppFormats ) {
this.vectorContSuppFormats = vectorContSuppFormats;
if ( vectorContSuppFormats.isEmpty() ) {
checkEnableTrack.setState ( false );
checkEnableTrack.setEnabled ( false );
onEnableTrack ( true );
return;
}
else {
checkEnableTrack.setEnabled ( true );
checkEnableTrack.setState ( boolEnableTrackSaved );
onEnableTrack ( true );
}
if ( !isFormatSupported(this.formatOld) )
this.formatOld = null;
updateFields ( formatOld );
}
public void setTrackEnabled ( boolean boolEnable ) {
boolEnableTrackSaved = boolEnable;
if ( checkEnableTrack == null )
return;
checkEnableTrack.setState ( boolEnable );
onEnableTrack ( true );
}
public boolean isTrackEnabled () {
boolean boolEnabled;
boolEnabled = checkEnableTrack.getState ();
return ( boolEnabled );
}
private void init () throws Exception {
Panel panel;
Panel panelGroup;
Panel panelLabel;
Panel panelData;
Panel panelEntry;
Label label;
this.setLayout ( new BorderLayout(6,6) );
panel = this;
checkEnableTrack = new Checkbox ( JMFI18N.getResource("formatchooser.enabletrack"), true );
checkEnableTrack.addItemListener ( this );
if ( boolDisplayEnableTrack == true ) {
panelGroup = new Panel ( new BorderLayout() );
panel.add ( panelGroup, BorderLayout.NORTH );
panelGroup.add ( checkEnableTrack, BorderLayout.WEST );
}
panelGroup = new Panel ( new BorderLayout(6,6) );
panel.add ( panelGroup, BorderLayout.CENTER );
panel = panelGroup;
panelGroup = new Panel ( new BorderLayout() );
panel.add ( panelGroup, BorderLayout.NORTH );
panelLabel = new Panel ( new GridLayout(0,1,6,6) );
panelGroup.add ( panelLabel, BorderLayout.WEST );
panelData = new Panel ( new GridLayout(0,1,6,6) );
panelGroup.add ( panelData, BorderLayout.CENTER );
labelEncoding = new Label ( JMFI18N.getResource("formatchooser.encoding"), Label.LEFT );
panelLabel.add ( labelEncoding );
comboEncoding = new Choice ();
comboEncoding.addItemListener ( this );
panelData.add ( comboEncoding );
labelSampleRate = new Label ( JMFI18N.getResource("formatchooser.samplerate"), Label.LEFT );
panelLabel.add ( labelSampleRate );
panelEntry = new Panel ( new BorderLayout(6,6) );
panelData.add ( panelEntry );
comboSampleRate = new Choice ();
comboSampleRate.addItemListener ( this );
panelEntry.add ( comboSampleRate, BorderLayout.CENTER );
labelHz = new Label ( JMFI18N.getResource("formatchooser.hz") );
panelEntry.add ( labelHz, BorderLayout.EAST );
labelBitsPerSample = new Label ( JMFI18N.getResource("formatchooser.bitspersample"), Label.LEFT );
panelLabel.add ( labelBitsPerSample );
panelEntry = new Panel ( new GridLayout(1,0,6,6) );
panelData.add ( panelEntry );
groupBitsPerSample = new CheckboxGroup ();
checkBits8 = new Checkbox ( JMFI18N.getResource("formatchooser.8bit"), groupBitsPerSample, false );
checkBits8.addItemListener ( this );
panelEntry.add ( checkBits8 );
checkBits16 = new Checkbox ( JMFI18N.getResource("formatchooser.16bit"), groupBitsPerSample, false );
checkBits16.addItemListener ( this );
panelEntry.add ( checkBits16 );
labelChannels = new Label ( JMFI18N.getResource("formatchooser.channels"), Label.LEFT );
panelLabel.add ( labelChannels );
panelEntry = new Panel ( new GridLayout(1,0,6,6) );
panelData.add ( panelEntry );
groupChannels = new CheckboxGroup ();
checkMono = new Checkbox ( JMFI18N.getResource("formatchooser.mono"), groupChannels, false );
checkMono.addItemListener ( this );
panelEntry.add ( checkMono );
checkStereo = new Checkbox ( JMFI18N.getResource("formatchooser.stereo"), groupChannels, false );
checkStereo.addItemListener ( this );
panelEntry.add ( checkStereo );
labelEndian = new Label ( JMFI18N.getResource("formatchooser.endian"), Label.LEFT );
panelLabel.add ( labelEndian );
panelEntry = new Panel ( new GridLayout(1,0,6,6) );
panelData.add ( panelEntry );
groupEndian = new CheckboxGroup ();
checkEndianBig = new Checkbox ( JMFI18N.getResource("formatchooser.endian.big"), groupEndian, false );
checkEndianBig.addItemListener ( this );
panelEntry.add ( checkEndianBig );
checkEndianLittle = new Checkbox ( JMFI18N.getResource("formatchooser.endian.little"), groupEndian, false );
checkEndianLittle.addItemListener ( this );
panelEntry.add ( checkEndianLittle );
panelGroup = new Panel ( new BorderLayout(6,6) );
panel.add ( panelGroup, BorderLayout.CENTER );
panel = panelGroup;
panelGroup = new Panel ( new BorderLayout() );
panel.add ( panelGroup, BorderLayout.NORTH );
checkSigned = new Checkbox ( JMFI18N.getResource("formatchooser.signed"), true );
checkSigned.addItemListener ( this );
panelGroup.add ( checkSigned, BorderLayout.WEST );
updateFields ( formatOld );
}
private void updateFields ( AudioFormat formatDefault ) {
int i;
int nSize;
String strEncoding;
String strEncodingPref = null;
Object objectFormat;
AudioFormat formatAudio;
Vector vectorEncoding = new Vector ();
boolean boolEnable;
boolEnable = comboEncoding.isEnabled ();
comboEncoding.setEnabled ( false );
comboEncoding.removeAll ();
nSize = vectorContSuppFormats.size ();
for ( i = 0; i < nSize; i++ ) {
objectFormat = vectorContSuppFormats.elementAt ( i );
if ( !(objectFormat instanceof AudioFormat) )
continue;
formatAudio = (AudioFormat) objectFormat;
strEncoding = formatAudio.getEncoding().toUpperCase();
if ( vectorEncoding.contains(strEncoding) )
continue;
comboEncoding.addItem ( strEncoding );
vectorEncoding.addElement ( strEncoding );
if ( strEncodingPref == null )
strEncodingPref = strEncoding;
}
if ( formatDefault != null ) {
strEncoding = formatDefault.getEncoding ();
comboEncoding.select ( strEncoding );
}
else if ( strEncodingPref != null )
comboEncoding.select ( strEncodingPref );
else if ( comboEncoding.getItemCount() > 0 )
comboEncoding.select ( 0 );
updateFieldsFromEncoding ( formatDefault );
comboEncoding.setEnabled ( boolEnable );
}
private void updateFieldsFromEncoding ( AudioFormat formatDefault ) {
int i;
int nSize;
double dSampleRate;
String strSampleRate;
String strSampleRatePref = null;
Object objectFormat;
AudioFormat formatAudio;
Vector vectorRates = new Vector ();
boolean boolEnable;
boolEnable = comboSampleRate.isEnabled ();
comboSampleRate.setEnabled ( false );
comboSampleRate.removeAll ();
nSize = vectorContSuppFormats.size ();
for ( i = 0; i < nSize; i++ ) {
objectFormat = vectorContSuppFormats.elementAt ( i );
if ( !(objectFormat instanceof AudioFormat) )
continue;
formatAudio = (AudioFormat) objectFormat;
if ( !isFormatGoodForEncoding(formatAudio) )
continue;
dSampleRate = formatAudio.getSampleRate ();
strSampleRate = Double.toString ( dSampleRate );
if ( vectorRates.contains(strSampleRate) )
continue;
comboSampleRate.addItem ( strSampleRate );
vectorRates.addElement ( strSampleRate );
if ( strSampleRatePref == null )
strSampleRatePref = strSampleRate;
}
if ( formatDefault != null && isFormatGoodForEncoding(formatDefault) )
comboSampleRate.select ( Double.toString ( formatDefault.getSampleRate() ) );
else if ( strSampleRatePref != null )
comboEncoding.select ( strSampleRatePref );
else if ( comboSampleRate.getItemCount() > 0 )
comboSampleRate.select ( 0 );
updateFieldsFromRate ( formatDefault );
comboSampleRate.setEnabled ( boolEnable );
}
private void updateFieldsFromRate ( AudioFormat formatDefault ) {
int i;
int nSize;
Object objectFormat;
AudioFormat formatAudio;
int nBits;
int nBitsPref = Format.NOT_SPECIFIED;
boolEnable8 = false;
boolEnable16 = false;
nSize = vectorContSuppFormats.size ();
for ( i = 0; i < nSize; i++ ) {
objectFormat = vectorContSuppFormats.elementAt ( i );
if ( !(objectFormat instanceof AudioFormat) )
continue;
formatAudio = (AudioFormat) objectFormat;
if ( !this.isFormatGoodForEncoding(formatAudio) )
continue;
if ( !this.isFormatGoodForSampleRate(formatAudio) )
continue;
nBits = formatAudio.getSampleSizeInBits ();
if ( nBitsPref == Format.NOT_SPECIFIED )
nBitsPref = nBits;
if ( nBits == Format.NOT_SPECIFIED ) {
boolEnable8 = true;
boolEnable16 = true;
}
else if ( nBits == 8 )
boolEnable8 = true;
else if ( nBits == 16 )
boolEnable16 = true;
}
checkBits8.setEnabled ( boolEnable8 );
checkBits16.setEnabled ( boolEnable16 );
if ( formatDefault != null
&& this.isFormatGoodForEncoding(formatDefault)
&& this.isFormatGoodForSampleRate(formatDefault) ) {
nBits = formatDefault.getSampleSizeInBits ();
if ( nBits == 8 )
checkBits8.setState ( true );
else if ( nBits == 16 )
checkBits16.setState ( true );
}
else if ( nBitsPref != Format.NOT_SPECIFIED ) {
if ( nBitsPref == 8 )
checkBits8.setState ( true );
else if ( nBitsPref == 16 )
checkBits16.setState ( true );
}
else {
if ( boolEnable8 == true )
checkBits8.setState ( true );
else
checkBits16.setState ( true );
}
updateFieldsFromBits ( formatDefault );
}
private void updateFieldsFromBits ( AudioFormat formatDefault ) {
int i;
int nSize;
Object objectFormat;
AudioFormat formatAudio;
int nChannels;
int nChannelsPref = Format.NOT_SPECIFIED;
boolEnableMono = false;
boolEnableStereo = false;
nSize = vectorContSuppFormats.size ();
for ( i = 0; i < nSize; i++ ) {
objectFormat = vectorContSuppFormats.elementAt ( i );
if ( !(objectFormat instanceof AudioFormat) )
continue;
formatAudio = (AudioFormat) objectFormat;
if ( !this.isFormatGoodForEncoding(formatAudio) )
continue;
if ( !this.isFormatGoodForSampleRate(formatAudio) )
continue;
if ( !this.isFormatGoodForBitSize(formatAudio) )
continue;
nChannels = formatAudio.getChannels ();
if ( nChannelsPref == Format.NOT_SPECIFIED )
nChannelsPref = nChannels;
if ( nChannels == Format.NOT_SPECIFIED ) {
boolEnableMono = true;
boolEnableStereo = true;
}
else if ( nChannels == 1 )
boolEnableMono = true;
else
boolEnableStereo = true;
}
checkMono.setEnabled ( boolEnableMono );
checkStereo.setEnabled ( boolEnableStereo );
if ( formatDefault != null
&& this.isFormatGoodForEncoding(formatDefault)
&& this.isFormatGoodForSampleRate(formatDefault)
&& this.isFormatGoodForBitSize(formatDefault) ) {
nChannels = formatDefault.getChannels ();
if ( nChannels == 1 )
checkMono.setState ( true );
else
checkStereo.setState ( true );
}
else if ( nChannelsPref != Format.NOT_SPECIFIED ) {
if ( nChannelsPref == 1 )
checkMono.setState ( true );
else
checkStereo.setState ( true );
}
else {
if ( boolEnableMono == true )
checkMono.setState ( true );
else
checkStereo.setState ( true );
}
updateFieldsFromChannels ( formatDefault );
}
private void updateFieldsFromChannels ( AudioFormat formatDefault ) {
int i;
int nSize;
Object objectFormat;
AudioFormat formatAudio;
int nEndian;
int nEndianPref = Format.NOT_SPECIFIED;
boolEnableEndianBig = false;
boolEnableEndianLittle = false;
nSize = vectorContSuppFormats.size ();
for ( i = 0; i < nSize; i++ ) {
objectFormat = vectorContSuppFormats.elementAt ( i );
if ( !(objectFormat instanceof AudioFormat) )
continue;
formatAudio = (AudioFormat) objectFormat;
if ( !this.isFormatGoodForEncoding(formatAudio) )
continue;
if ( !this.isFormatGoodForSampleRate(formatAudio) )
continue;
if ( !this.isFormatGoodForBitSize(formatAudio) )
continue;
if ( !this.isFormatGoodForChannels(formatAudio) )
continue;
nEndian = formatAudio.getEndian ();
if ( nEndianPref == Format.NOT_SPECIFIED )
nEndianPref = nEndian;
if ( nEndian == Format.NOT_SPECIFIED ) {
boolEnableEndianBig = true;
boolEnableEndianLittle = true;
}
else if ( nEndian == AudioFormat.BIG_ENDIAN )
boolEnableEndianBig = true;
else
boolEnableEndianLittle = true;
}
checkEndianBig.setEnabled ( boolEnableEndianBig );
checkEndianLittle.setEnabled ( boolEnableEndianLittle );
if ( formatDefault != null
&& this.isFormatGoodForEncoding(formatDefault)
&& this.isFormatGoodForSampleRate(formatDefault)
&& this.isFormatGoodForBitSize(formatDefault)
&& this.isFormatGoodForChannels(formatDefault) ) {
nEndian = formatDefault.getEndian ();
if ( nEndian == AudioFormat.BIG_ENDIAN )
checkEndianBig.setState ( true );
else
checkEndianLittle.setState ( true );
}
else if ( nEndianPref != Format.NOT_SPECIFIED ) {
if ( nEndianPref == AudioFormat.BIG_ENDIAN )
checkEndianBig.setState ( true );
else
checkEndianLittle.setState ( true );
}
else {
if ( boolEnableEndianBig == true )
checkEndianBig.setState ( true );
else
checkEndianLittle.setState ( true );
}
if ( checkBits16.getState() != true ) {
// endian doesn't matter
boolEnableEndianBig = false;
boolEnableEndianLittle = false;
checkEndianBig.setEnabled ( boolEnableEndianBig );
checkEndianLittle.setEnabled ( boolEnableEndianLittle );
}
updateFieldsFromEndian ( formatDefault );
}
private void updateFieldsFromEndian ( AudioFormat formatDefault ) {
int i;
int nSize;
Object objectFormat;
AudioFormat formatAudio;
int nSigned;
int nSignedPref = Format.NOT_SPECIFIED;
boolean boolSigned;
boolean boolUnsigned;
boolSigned = false;
boolUnsigned = false;
nSize = vectorContSuppFormats.size ();
for ( i = 0; i < nSize; i++ ) {
objectFormat = vectorContSuppFormats.elementAt ( i );
if ( !(objectFormat instanceof AudioFormat) )
continue;
formatAudio = (AudioFormat) objectFormat;
if ( !this.isFormatGoodForEncoding(formatAudio) )
continue;
if ( !this.isFormatGoodForSampleRate(formatAudio) )
continue;
if ( !this.isFormatGoodForBitSize(formatAudio) )
continue;
if ( !this.isFormatGoodForChannels(formatAudio) )
continue;
if ( !this.isFormatGoodForEndian(formatAudio) )
continue;
nSigned = formatAudio.getSigned ();
if ( nSignedPref == Format.NOT_SPECIFIED )
nSignedPref = nSigned;
if ( nSigned == Format.NOT_SPECIFIED ) {
boolSigned = true;
boolUnsigned = true;
}
else if ( nSigned == AudioFormat.SIGNED )
boolSigned = true;
else
boolUnsigned = true;
}
boolEnableSigned = boolSigned && boolUnsigned;
checkSigned.setEnabled ( boolEnableSigned );
if ( formatDefault != null
&& this.isFormatGoodForEncoding(formatDefault)
&& this.isFormatGoodForSampleRate(formatDefault)
&& this.isFormatGoodForBitSize(formatDefault)
&& this.isFormatGoodForChannels(formatDefault)
&& this.isFormatGoodForEndian(formatDefault) ) {
nSigned = formatDefault.getSigned ();
if ( nSigned == AudioFormat.SIGNED )
checkSigned.setState ( true );
else
checkSigned.setState ( false );
}
else if ( nSignedPref != Format.NOT_SPECIFIED ) {
if ( nSignedPref == AudioFormat.SIGNED )
checkSigned.setState ( true );
else
checkSigned.setState ( false );
}
else {
if ( boolSigned == true )
checkSigned.setState ( true );
else
checkSigned.setState ( false );
}
updateFieldsFromSigned ( formatDefault );
}
private void updateFieldsFromSigned ( AudioFormat formatDefault ) {
}
private boolean isFormatGoodForEncoding ( AudioFormat format ) {
String strEncoding;
boolean boolResult = false;
strEncoding = comboEncoding.getSelectedItem ();
if ( strEncoding != null ) {
boolResult = format.getEncoding().equalsIgnoreCase(strEncoding);
}
return ( boolResult );
}
private boolean isFormatGoodForSampleRate ( AudioFormat format ) {
double dSampleRate;
String strSampleRate;
boolean boolResult = false;
strSampleRate = comboSampleRate.getSelectedItem ();
if ( strSampleRate != null ) {
dSampleRate = Double.valueOf(strSampleRate).doubleValue();
if ( format.getSampleRate() == Format.NOT_SPECIFIED )
boolResult = true;
else if ( format.getSampleRate() == dSampleRate )
boolResult = true;
}
return ( boolResult );
}
private boolean isFormatGoodForBitSize ( AudioFormat format ) {
int nBits;
boolean boolResult = false;
if ( checkBits8.getState() == true )
nBits = 8;
else if ( checkBits16.getState() == true )
nBits = 16;
else
nBits = Format.NOT_SPECIFIED;
if ( format.getSampleSizeInBits() == Format.NOT_SPECIFIED )
boolResult = true;
else if ( nBits == Format.NOT_SPECIFIED )
boolResult = true;
else if ( format.getSampleSizeInBits() == nBits )
boolResult = true;
else if ( format.getSampleSizeInBits() < 8 ) // Hack to allow 4bit and 0bit
boolResult = true;
return ( boolResult );
}
private boolean isFormatGoodForChannels ( AudioFormat format ) {
int nChannels;
boolean boolResult = false;
if ( checkMono.getState() == true )
nChannels = 1;
else if ( checkStereo.getState() == true )
nChannels = 2;
else
nChannels = Format.NOT_SPECIFIED;
if ( format.getChannels() == Format.NOT_SPECIFIED )
boolResult = true;
else if ( nChannels == Format.NOT_SPECIFIED )
boolResult = true;
else if ( format.getChannels() == nChannels )
boolResult = true;
return ( boolResult );
}
private boolean isFormatGoodForEndian ( AudioFormat format ) {
int nEndian;
boolean boolResult = false;
if ( checkEndianBig.getState() == true )
nEndian = AudioFormat.BIG_ENDIAN;
else if ( checkStereo.getState() == true )
nEndian = AudioFormat.LITTLE_ENDIAN;
else
nEndian = Format.NOT_SPECIFIED;
if ( format.getEndian() == Format.NOT_SPECIFIED )
boolResult = true;
else if ( nEndian == Format.NOT_SPECIFIED )
boolResult = true;
else if ( format.getEndian() == nEndian )
boolResult = true;
return ( boolResult );
}
private boolean isFormatGoodForSigned ( AudioFormat format ) {
int nSigned;
boolean boolResult = false;
if ( checkSigned.getState() == true )
nSigned = AudioFormat.SIGNED;
else
nSigned = AudioFormat.UNSIGNED;
if ( format.getSigned() == Format.NOT_SPECIFIED )
boolResult = true;
else if ( nSigned == Format.NOT_SPECIFIED )
boolResult = true;
else if ( format.getSigned() == nSigned )
boolResult = true;
return ( boolResult );
}
private boolean isFormatSupported ( AudioFormat format ) {
int i;
int nCount;
AudioFormat formatAudio;
boolean boolSupported = false;
if ( format == null )
return ( boolSupported );
nCount = vectorContSuppFormats.size ();
for ( i = 0; i < nCount && boolSupported == false; i++ ) {
formatAudio = (AudioFormat) vectorContSuppFormats.elementAt ( i );
if ( formatAudio.matches(format) )
boolSupported = true;
}
return ( boolSupported );
}
public void itemStateChanged ( ItemEvent event ) {
Object objectSource;
objectSource = event.getSource ();
if ( objectSource == checkEnableTrack ) {
boolEnableTrackSaved = checkEnableTrack.getState ();
onEnableTrack ( true );
}
else if ( objectSource == comboEncoding ) {
updateFieldsFromEncoding ( formatOld );
}
else if ( objectSource == comboSampleRate ) {
updateFieldsFromRate ( formatOld );
}
else if ( objectSource == checkBits8 || objectSource == checkBits16 ) {
updateFieldsFromBits ( formatOld );
}
else if ( objectSource == checkMono || objectSource == checkStereo ) {
updateFieldsFromChannels ( formatOld );
}
else if ( objectSource == checkEndianBig || objectSource == checkEndianLittle ) {
updateFieldsFromEndian ( formatOld );
}
else if ( objectSource == checkSigned ) {
updateFieldsFromSigned ( formatOld );
}
}
private void onEnableTrack ( boolean notifyListener ) {
boolean boolEnable;
ActionEvent event;
boolEnable = checkEnableTrack.getState ();
enableControls ( boolEnable && this.isEnabled() );
if ( notifyListener == true && listenerEnableTrack != null ) {
if ( boolEnable == true )
event = new ActionEvent ( this, ActionEvent.ACTION_PERFORMED, ACTION_TRACK_ENABLED );
else
event = new ActionEvent ( this, ActionEvent.ACTION_PERFORMED, ACTION_TRACK_DISABLED );
listenerEnableTrack.actionPerformed ( event );
}
}
private void enableControls ( boolean boolEnable ) {
labelEncoding.setEnabled ( boolEnable );
comboEncoding.setEnabled ( boolEnable );
labelSampleRate.setEnabled ( boolEnable );
comboSampleRate.setEnabled ( boolEnable );
labelHz.setEnabled ( boolEnable );
labelBitsPerSample.setEnabled ( boolEnable );
checkBits8.setEnabled ( boolEnable && boolEnable8 );
checkBits16.setEnabled ( boolEnable && boolEnable16 );
labelChannels.setEnabled ( boolEnable );
checkMono.setEnabled ( boolEnable && boolEnableMono );
checkStereo.setEnabled ( boolEnable && boolEnableStereo );
labelEndian.setEnabled ( boolEnable );
checkEndianBig.setEnabled ( boolEnable && boolEnableEndianBig );
checkEndianLittle.setEnabled ( boolEnable && boolEnableEndianLittle );
checkSigned.setEnabled ( boolEnable && boolEnableSigned );
}
}